Mount them dry or sealant on both sides?

I have always used a thin layer of sealant on either side of the paper gaskets for the timing cover and it works, no leaks but no matter how careful I am there are always some that squeezes out and looks bad.

Anyone had no leaks with just the paper gasket?

 I've always coated both sides with a thin layer of grease. I've cussed every paper gasket I ever treated with grease, but it was always when trying to remove it later. Never any leaks.